Operating instructions

60 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

401-652M Table of Contents Index 2015-01-26

1. Raise the planter. Although this adjustment can be

made with the planter lowered, the springs will be in

tension, and will require more effort. The extra force

may also damage tools.

2. Install lift assist cylinder locks. Lower parking stands.

3. Set the down pressure spring cam to zero, per the

instructions on page 48.

4. Raise the row unit high enough that the hole for the

pin is above the lower parallel arm. This can be done

in several ways, including:

a. use a hoist at the rear of the shank

b. use a jack under the shank extension

Crushing Hazard:

Use a jack or hoist. Raising a row unit on a block by lowering

the planter is risky. The potential for hydraulic failure creates

a safety hazard. Full lowering can damage components.

Refer to Figure 71

5. Remove the pin from the storage hole and insert

and secure it in the lock-up hole .

6. Lower row unit until lock-up pin rests on lower

parallel arm.

Sprocket Indexing (Stagger)

If you are planting:

• twin-row crops,

• at seed interval spacings above 6

⁄

inches (16.5 cm),

you can synchronize each pair of adjacent meters in a

twin row so that you achieve the maximum seed-to-seed

spacing between the units of the pair.

Refer to the Seed and Fertilizer Rate manual (401-651B)

for instructions and charts.

Certain Machine Damage:

Do not pin the row unit while it is in the lowered position.

If the pin is inserted below the parallel arm, unit damage

occurs as soon as planting begins.

Figure 71

25AP Row Unit Locked Up

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